Home / 3,907.04-5,389.39-2,843.38

Finding the Fourth Proportional to 3,907.04, 5,389.39 and 2,843.38

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Solution

The fourth proportional to 3,907.04, 5,389.39 and 2,843.38 is: 3,922.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.04 : 5,389.39 = 2,843.38 : x
  2. Step 2: Convert to fraction form
    3,907.04/5,389.39 = 2,843.38/x
  3. Step 3: Cross multiply
    3,907.04x = 5,389.39 × 2,843.38
  4. Step 4: Simplify right side
    3,907.04x = 15,324,062.88
  5. Step 5: Solve for x
    x = 15,324,062.88/3,907.04
  6. Step 6: Final answer
    x = 3,922.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.